Melamine resin powder automatic weighing and mixing device

By designing the quantitative and tapping mechanisms of the automatic weighing and mixing device, the problems of cumbersome weighing and powder residue in the production of melamine resin powder were solved, achieving efficient mixing and cleaning, and improving the automation and cleaning efficiency of the equipment.

CN224408090UActive Publication Date: 2026-06-26CHUZHOU AIJIA MELAMINE PROD CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHUZHOU AIJIA MELAMINE PROD CO LTD
Filing Date
2025-05-26
Publication Date
2026-06-26

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Abstract

The utility model discloses a kind of melamine resin powder automatic weighing mixing devices, it is related to weighing mixing device technical field, including support, the top of the support is fixed with mixing tank, the lower end of the mixing tank is fixed with the communicating discharge pipe, the top of the mixing tank is fixed with top cover, the upper end outer of the top cover is equidistant with three groups of ration mechanism, the both sides of the mixing tank are equipped with knocking mechanism, the top end middle part of the top cover is fixed with motor one. The utility model can drive hinged seat to rotate in extension plate by operating personnel lifting sleeve rod and pulling outwards, make its knocking block far away from mixing tank, while spring is stretched, sleeve rod can be released subsequently, under the elastic effect of spring, sleeve rod can be pulled back, so that knocking block can hit the outer wall of mixing tank, make the outer wall of jar body vibrate, so that the powder adhered on its inner wall vibrates and falls down, to this end, cleaning can be completed, and waste of powder is avoided.
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Description

Technical Field

[0001] This utility model relates to the technical field of weighing and mixing devices, specifically to an automatic weighing and mixing device for melamine resin powder. Background Technology

[0002] Melamine resin powder, also known as melamine-formaldehyde resin, is a polymer obtained by reacting melamine and formaldehyde under specific conditions. It has high chemical activity, low shrinkage, high hardness, strong coloring power, water resistance, heat resistance, and corrosion resistance, and is widely used in the manufacture of various products, such as tableware, decorative panels, and daily necessities.

[0003] In the production process of melamine resin powder, different types of melamine resin powder raw materials need to be added to the mixing tank in a quantitative manner, which requires the use of a weighing and mixing device.

[0004] In practical use, most existing devices first weigh each melamine resin powder raw material sequentially using a weighing device to obtain the required amount of each melamine resin powder raw material, and then pour them into the mixing device for mixing. The operation steps are cumbersome and inefficient. At the same time, after the mixed raw materials are discharged from the discharge pipe, powder often remains on the inner wall of the tank, indicating that it has not been completely discharged, and it is inconvenient to clean the powder on the inner wall, thus affecting the cleanliness of the equipment after use. Utility Model Content

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] An automatic weighing and mixing device for melamine resin powder includes a support frame, a mixing tank fixedly mounted on the top of the support frame, a discharge pipe fixedly mounted on the lower end of the mixing tank, a top cover fixedly mounted on the top of the mixing tank, three sets of metering mechanisms evenly distributed on the upper outer side of the top cover, a striking mechanism on both sides of the mixing tank, a motor fixedly mounted at the top center of the top cover, a transmission rod driven at the output end of the motor, and four sets of stirring blades fixedly mounted on the outside of the transmission rod.

[0007] The quantitative mechanism includes a mounting frame, the bottom of which is fixedly mounted to the upper part of the top cover. A storage tank is fixedly mounted on the top of the mounting frame, and a sealing cap is hinged to the top of the storage tank. A connected feed pipe is fixedly mounted on the lower part of the storage tank, and a base is fixedly mounted on the lower part of the feed pipe. A solenoid valve is fixedly mounted on the upper part of the feed pipe. A rotating shaft is rotatably mounted inside the lower side of the feed pipe, and a partition is fixedly sleeved on the outside of the rotating shaft. A weighing sensor scale is fixedly mounted on the upper side of the partition. A second motor is fixedly mounted on the rear end of the feed pipe. Three sets of flow ports are equidistantly opened on the upper part of the top cover.

[0008] Preferably, the lower end of the base is fixedly connected to the upper end of the top cover, and the feed pipe is connected to the interior of the mixing tank through the flow port.

[0009] Preferably, the top end of the rotating shaft is driven and installed at the output end of the second motor, the partition is circular, the partition is fitted into the inside of the feed pipe, and is rotatably installed.

[0010] Preferably, the striking mechanism includes a fixed base, the bottom end of which is symmetrically fixedly connected to both sides of the outer surface of the mixing tank. A slot is provided at the front end of the fixed base, and a locking block is movably installed inside the slot. An extension plate is fixedly provided at the front end of the locking block. A crossbar is rotatably installed on the inner side of the top of the extension plate. A hinge seat is fixedly sleeved on the outside of the crossbar. A sleeve rod is fixedly provided at the lower end of the hinge seat. Limiting grooves are provided on both sides of the sleeve rod. A spring is fixedly provided at the lower end of the extension plate. A movable rod is slidably installed inside the sleeve rod. Limiting blocks are fixedly provided on both sides of the upper end of the movable rod. Multiple sets of screw holes are equidistantly provided on one side surface of the movable rod. A bolt is movably installed on the lower side of the outer end of the sleeve rod. A striking block is fixedly provided at the bottom end of the movable rod.

[0011] Preferably, both the slot and the block are cross-shaped, and one end of the spring is fixedly connected to the inner side of the upper end of the sleeve rod.

[0012] Preferably, the limiting block is fitted into the limiting groove and is slidably connected, and the bolt is threadedly connected to the screw hole.

[0013] Preferably, the outer wall of the striking block is bonded with a rubber cushioning pad.

[0014] Preferably, a valve is fixedly installed on the discharge pipe.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. This utility model provides an automatic weighing and mixing device for melamine resin powder. Through a quantitative mechanism, the mixing tank is equipped with multiple sets of storage tanks, each containing different raw materials. The raw materials in the storage tanks are fed into the feeding tank and quantitatively weighed by a weighing sensor scale. After reaching the appropriate weight, the partition can be flipped, and the raw materials weighed in the multiple feeding pipes can then enter the mixing tank through the flow port for easy mixing. By realizing the quantitative weighing and mixing of multiple sets of raw materials, the device greatly improves work efficiency, enhances overall automatic operation, and is simple and convenient to use.

[0017] 2. This utility model provides an automatic weighing and mixing device for melamine resin powder. Through a striking mechanism, the operator lifts the sleeve rod and pulls it outward. The sleeve rod can drive the hinge seat to rotate within the extension plate, causing the striking block to move away from the mixing tank. At the same time, the spring is stretched. Subsequently, the sleeve rod can be released, and under the elastic effect of the spring, the sleeve rod can be pulled back, allowing the striking block to strike the outer wall of the mixing tank. This causes the outer wall of the tank to vibrate, thereby causing the powder adhering to the inner wall to fall off, thus completing the cleaning and avoiding powder waste. At the same time, the movable installation between the locking block and the locking slot makes it easy to remove the locking block and other components for easy storage. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the automatic weighing and mixing device for melamine resin powder of this utility model.

[0019] Figure 2 This is a schematic diagram of the internal structure of the mixing tank of this utility model;

[0020] Figure 3 This is a schematic diagram of the quantitative mechanism of this utility model;

[0021] Figure 4 This is a schematic diagram of the internal structure of the feed pipe of this utility model;

[0022] Figure 5 This is a schematic diagram of the striking mechanism of this utility model.

[0023] In the diagram: 1. Support; 2. Mixing tank; 3. Discharge pipe; 4. Top cover; 5. Measuring mechanism; 6. Striking mechanism; 7. Motor 1; 8. Transmission rod; 9. Agitator blade; 51. Mounting bracket; 52. Storage tank; 53. Sealing cover; 54. Feed pipe; 55. Base; 56. Solenoid valve; 57. Rotating shaft; 58. Partition plate; 59. Weighing sensor scale; 510. Motor 2; 511. Flow port; 61. Fixed seat; 62. Slot; 63. Locking block; 64. Extension plate; 65. Hinge seat; 66. Sleeve rod; 67. Limiting groove; 68. Spring; 69. Movable rod; 610. Limiting block; 611. Screw hole; 612. Bolt; 613. Striking block. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to embodiments:

[0025] like Figures 1-5As shown, this utility model provides an automatic weighing and mixing device for melamine resin powder, including a support 1, a mixing tank 2 fixedly mounted on the top of the support 1, a discharge pipe 3 fixedly mounted on the lower end of the mixing tank 2, a top cover 4 fixedly mounted on the top of the mixing tank 2, three sets of quantitative mechanisms 5 evenly distributed on the upper outer side of the top cover 4, a striking mechanism 6 on both sides of the mixing tank 2, a motor 7 fixedly mounted on the top center of the top of the top cover 4, a transmission rod 8 driven by the output end of the motor 7, and four sets of stirring blades 9 fixedly mounted on the external side of the transmission rod 8.

[0026] A valve is fixedly installed on the discharge pipe 3.

[0027] In this solution, the quantitative mechanism 5 can simultaneously complete the automatic quantitative weighing of multiple raw materials, and then these raw materials enter the mixing tank 2 almost at the same time, which greatly shortens the batching and mixing time. Through the striking mechanism 6, the locking block 63 is installed between the locking block 63 and the locking slot 62, which makes it easy to remove the locking block 63 and facilitates the storage of the striking block 613 and other components.

[0028] like Figures 3-4 As shown, the quantitative mechanism 5 includes a mounting frame 51. The bottom end of the mounting frame 51 is fixedly installed on the upper end of the top cover 4. A storage tank 52 is fixedly installed on the top end of the mounting frame 51. A sealing cover 53 is hingedly installed on the top of the storage tank 52. A connected feed pipe 54 is fixedly installed on the lower end of the storage tank 52. A base 55 is fixedly installed on the lower end of the feed pipe 54. A solenoid valve 56 is fixedly installed on the upper end of the feed pipe 54. A rotating shaft 57 is rotatably installed on the lower side inside the feed pipe 54. A partition 58 is fixedly sleeved on the outside of the rotating shaft 57. A weighing sensor scale 59 is fixedly installed on the upper side of the partition 58. A motor 510 is fixedly installed at the rear end of the feed pipe 54. Three sets of flow ports 511 are equidistantly opened on the upper outer side of the top cover 4.

[0029] The lower end of the base 55 is fixedly connected to the upper end of the top cover 4, and the feed pipe 54 is connected to the interior of the mixing tank 2 through the flow port 511.

[0030] The top of the rotating shaft 57 is driven and installed at the output end of the motor 510. The partition 58 is circular and fits into the inside of the feed pipe 54 and is rotatably installed.

[0031] In this scheme, when the raw material falls onto the weighing sensor scale 59, when the weight of the raw material reaches the preset value, the motor 510 can be controlled to drive the rotating shaft 57 to rotate, thereby causing the partition 58 to flip. After the partition 58 flips, it becomes a vertical platform. At the same time, the raw material that has been weighed in the feed pipe 54 can easily and smoothly fall into the mixing tank 2 below through the flow port 511.

[0032] In this solution, quantitative structure enables quantitative weighing and efficient mixing of multiple raw materials, thereby improving work efficiency. Its automated operation reduces manual intervention, which not only lowers labor costs but also avoids batching errors caused by human factors, ensuring the stability of product quality.

[0033] like Figure 5 As shown, the striking mechanism 6 includes a fixed base 61. The bottom end of the fixed base 61 is symmetrically fixed to both sides of the outside of the mixing tank 2. The front end of the fixed base 61 is provided with a slot 62. A locking block 63 is movably installed inside the slot 62. An extension plate 64 is fixedly provided at the front end of the locking block 63. A crossbar is rotatably installed on the inner side of the top end of the extension plate 64. A hinge seat 65 is fixedly sleeved on the outside of the crossbar. A sleeve rod 66 is fixedly provided at the lower end of the hinge seat 65. Limiting grooves 67 are provided on both sides of the sleeve rod 66. A spring 68 is fixedly provided at the lower end of the extension plate 64. A movable rod 69 is slidably installed inside the sleeve rod 66. Limiting blocks 610 are fixedly provided on both sides of the upper end of the movable rod 69. Multiple sets of screw holes 611 are equidistantly provided on one side surface of the movable rod 69. A bolt 612 is movably installed on the lower side of the outer end of the sleeve rod 66. A striking block 613 is fixedly provided at the bottom end of the movable rod 69.

[0034] Both the slot 62 and the block 63 are cross-shaped, and one end of the spring 68 is fixedly connected to the inner side of the upper end of the sleeve rod 66.

[0035] The limiting block 610 is fitted into the limiting groove 67 and is slidably connected, and the bolt 612 is threadedly connected to the screw hole 611.

[0036] The outer wall of the striking block 613 is bonded with a rubber cushioning pad.

[0037] In this design, by loosening and removing the bolt 612 from the screw hole 611, the movable rod 69 can slide up and down within the sleeve rod 66, and the limiting block 610 can slide synchronously within the limiting groove 67, which facilitates limiting the movable rod 69. At the same time, the movable rod 69 can drive the striking block 613 to move synchronously, thereby adjusting the position of the striking block 613 and increasing the range of striking. The rubber buffer pad on the striking block 613 can protect the outer wall of the mixing tank 2.

[0038] The working principle of this automatic weighing and mixing device for melamine resin powder will be explained in detail below.

[0039] like Figures 1-5As shown, when using this automatic weighing and mixing device for melamine resin powder, the sealing cover 53 can be opened first to pour different melamine resin powder raw materials into the storage tank 52 for easy storage. Simultaneously, the sealing cover 53 can be closed, and the solenoid valve 56 can be opened to allow the raw materials in the storage tank 52 to fall onto the baffle 58 in the feed pipe 54. The weighing sensor 59 on the baffle 58 can then weigh the raw materials. Once the raw materials reach the preset value, the solenoid valve 56 can be closed, allowing the storage tank to... The raw materials in section 52 stop falling. At this time, motor 2 (510) is started. Motor 2 (510) can drive the partition 58 to rotate in the feed pipe 54 via the rotating shaft 57, so that the partition 58 is in a vertical state. The raw materials after weighing can enter the mixing tank 2 through the feed pipe 54 and the flow port 511 for easy stirring and mixing. By starting motor 1 (7), motor 1 (7) can drive multiple sets of stirring blades 9 to rotate via the transmission rod 8. The rotating stirring blades 9 can be used to stir the multiple sets of raw materials in the mixing tank 2. After mixing and stirring, the discharge pipe 3 can be opened to facilitate the discharge of the mixed melamine resin powder. Since the powder easily adheres to the inner wall of the mixing tank 2, making cleaning difficult, the operator can grasp the sleeve rod 66 and pull it outwards. This causes the sleeve rod 66 to rotate the hinge seat 65 inside the extension plate 64. As the sleeve rod 66 moves, the striking block 613 gradually moves away from the outer wall of the mixing tank 2. During this process, the spring 68 connected to the extension plate 64 on the inner side of the sleeve rod 66 is stretched. When the striking block... Once 613 reaches the predetermined position, the operator releases the sleeve rod 66, and the stretched spring 68 instantly releases its elastic potential energy, making it easy to pull the sleeve rod 66 back quickly. The sleeve rod 66 drives the hinge seat 65 to rotate in the opposite direction, causing the striking block 613 to strike the outer wall of the mixing tank 2 with precise angle and force. Each strike generates vibration in the tank, which is transmitted along the metal wall, causing the powder adhering to the inner wall to loosen and fall off due to the vibration. This fallen powder can be quickly discharged, avoiding waste and improving the utilization rate of raw materials.

[0040] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. An automatic weighing and mixing device for melamine resin powder, comprising a support (1), wherein a mixing tank (2) is fixedly mounted on the top of the support (1), characterized in that: The mixing tank (2) is fixedly provided with a connected discharge pipe (3) at the lower end, and a top cover (4) is fixedly provided at the top of the mixing tank (2). Three sets of metering mechanisms (5) are equidistantly distributed on the upper outer side of the top cover (4). A knocking mechanism (6) is provided on both sides of the mixing tank (2). A motor (7) is fixedly provided at the top center of the top of the top cover (4). A transmission rod (8) is installed at the output end of the motor (7). Four sets of stirring blades (9) are fixedly provided on the outside of the transmission rod (8). The quantitative mechanism (5) includes a mounting frame (51), the bottom end of which is fixedly installed on the upper end of the top cover (4), a storage tank (52) is fixedly installed on the top end of the mounting frame (51), a sealing cover (53) is hingedly installed on the top of the storage tank (52), a connected feed pipe (54) is fixedly installed on the lower end of the storage tank (52), a base (55) is fixedly installed on the lower end of the feed pipe (54), a solenoid valve (56) is fixedly installed on the upper end of the feed pipe (54), a rotating shaft (57) is rotatably installed on the lower side inside the feed pipe (54), a partition (58) is fixedly sleeved on the outside of the rotating shaft (57), a weighing sensor scale (59) is fixedly installed on the upper side of the partition (58), a motor (510) is fixedly installed on the rear end of the feed pipe (54), and three sets of flow ports (511) are equidistantly opened on the upper outer side of the top cover (4).

2. The automatic weighing and mixing device for melamine resin powder according to claim 1, characterized in that: The lower end of the base (55) is fixedly connected to the upper end of the top cover (4), and the feed pipe (54) is connected to the interior of the mixing tank (2) through the flow port (511).

3. The automatic weighing and mixing device for melamine resin powder according to claim 1, characterized in that: The top end of the rotating shaft (57) is driven and installed with the output end of the second motor (510). The partition (58) is circular and is fitted into the inside of the feed pipe (54) and is rotatably installed.

4. The automatic weighing and mixing device for melamine resin powder according to claim 1, characterized in that: The striking mechanism (6) includes a fixed base (61), the bottom end of which is symmetrically fixed to both sides of the mixing tank (2). A slot (62) is provided at the front end of the fixed base (61), and a locking block (63) is movably installed inside the slot (62). An extension plate (64) is fixedly provided at the front end of the locking block (63). A crossbar is rotatably installed on the inner side of the top end of the extension plate (64). A hinge seat (65) is fixedly sleeved on the outside of the crossbar. A sleeve rod (6) is fixedly provided at the lower end of the hinge seat (65). 6) Limiting grooves (67) are provided on both sides of the sleeve rod (66), and a spring (68) is fixedly provided at the lower end of the extension plate (64). A movable rod (69) is slidably installed inside the sleeve rod (66). Limiting blocks (610) are fixedly provided on both sides of the upper end of the movable rod (69). Multiple sets of screw holes (611) are equidistantly provided on one side surface of the movable rod (69). A bolt (612) is movably installed on the lower side of the outer end of the sleeve rod (66). A striking block (613) is fixedly provided at the bottom end of the movable rod (69).

5. The automatic weighing and mixing device for melamine resin powder according to claim 4, characterized in that: Both the slot (62) and the block (63) are cross-shaped, and one end of the spring (68) is fixedly connected to the inner side of the upper end of the sleeve (66).

6. The automatic weighing and mixing device for melamine resin powder according to claim 4, characterized in that: The limiting block (610) is fitted into the limiting groove (67) and is slidably connected, and the bolt (612) is threadedly connected to the screw hole (611).

7. The automatic weighing and mixing device for melamine resin powder according to claim 4, characterized in that: The outer wall of the striking block (613) is bonded with a rubber cushioning pad.

8. The automatic weighing and mixing device for melamine resin powder according to claim 1, characterized in that: A valve is fixedly installed on the discharge pipe (3).